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United States Patent | 5,040,567 |
Nestler ,   et al. | August 20, 1991 |
The multi-way valve comprises two valve seats (12, 14) formed in the valve chamber whose seat surfaces are parallel. Two closing bodies (22, 24) cooperating with one of these valve seats (12, 14) respectively are attached to both ends of an elongated actuating member (20). To this actuating member (20) there is attached the one end of an elastic lamella (18) whose other end (18A) is braced at the valve chamber (10). The actuating member (20) may swivel rocker-like around a swivel axis (28) which is not fixed in space. Although no direct guide for the actuating member (20) is provided, a precise guiding largely free from tolerances is guaranteed so that the drive power required is low.
Inventors: | Nestler; Volker (Niedernhall, DE); Tillman; Peter (Neuenstein, DE) |
Assignee: | Burkert GmbH & Company Werk Ingelfingen (Ingelfingen, DE) |
Appl. No.: | 391574 |
Filed: | July 17, 1989 |
PCT Filed: | November 17, 1988 |
PCT NO: | PCT/DE88/00720 |
371 Date: | July 17, 1989 |
102(e) Date: | July 17, 1989 |
PCT PUB.NO.: | WO89/04935 |
PCT PUB. Date: | June 1, 1989 |
Nov 17, 1987[DE] | 3739048 |
Current U.S. Class: | 137/625.44; 60/529; 137/870; 251/11; 251/129.16; 251/129.2; 335/274; 335/276 |
Intern'l Class: | F16K 011/18; F16K 031/02; F16K 031/06 |
Field of Search: | 137/596.17,625.4,625.44,625.65,861,870 251/11,75,129.16,129.17,129.2 335/275,276,274 60/528,529 |
2562631 | Jul., 1951 | Morrison. | |
3263693 | Aug., 1966 | Ages | 137/625. |
3470911 | Oct., 1969 | Dunn | 137/625. |
3613732 | Oct., 1971 | Wilson et al. | 251/11. |
3683962 | Aug., 1972 | Good | 137/870. |
3991788 | Nov., 1976 | Kull | 137/870. |
4249457 | Feb., 1981 | Sakakibara | 137/625. |
4250924 | Feb., 1981 | Sakakibara et al. | 137/596. |
4446889 | May., 1984 | Sakakibara et al. | 251/129. |
4527590 | Jul., 1985 | Kolze | 137/596. |
4535810 | Aug., 1985 | Duder et al. | 137/625. |
4685652 | Aug., 1987 | Shopsky | 60/529. |
4905962 | Mar., 1990 | Iljin | 251/129. |
Foreign Patent Documents | |||
3018951 | Nov., 1981 | DE | 251/129. |
853822 | Dec., 1940 | FR | 137/625. |
2091196 | Jan., 1972 | FR. | |
2550602 | Feb., 1985 | FR. |